Norres hose technology
The worldwide operating NORRES Schlauchtechnik GmbH from Gelsenkirchen goes back to a company foundation by the former miner Wilhelm Norres in 1889. The first product was a self-developed and patented safety detonator for explosives in mining. For many years the fuzes, now based on electricity, were the core product of the company. Contact with plastics took place with the development of fuse wires with thermoelectric insulation in the mid-1930s.
This development was only pursued further in 1955 with the purchase of an extrusion line for hoses and profiles. This resulted in the development of the WELLFLEX design and a range of cable protection conduits in the early 1960s. This product range became so successful that from 1973 the company concentrated completely on the development and production of technical hoses. The production of detonators was sold. Since then, the company has been producing innovations at regular intervals and constantly expanding the range of applications for its products.
Current product range
The range is divided into cable protection systems and technical hoses. The diversity of the hose technology offered can be seen in the total of 8 industry catalogues. The company manufactures and sells hoses for the agricultural industry, for potentially explosive areas, for smoke and dust extraction, for the plastics industry, for suction vehicles and sweeping and cleaning machines, for the food and pharmaceutical industries, for pneumatic conveying of powder, granulate and bulk material. The PRO2AIR range includes a complete ventilation system. The offer is completed by hose connections and other accessories.
The company does not only design products from marketable materials. Rather, materials are developed according to the company’s own requirements. The latest addition to this R & D activity is the special polyurethane mixture called Pre-PUR consisting of interlinked hard and soft segments. This material, which is already used in many products, ensures extremely high strength on the one hand and outstanding flexibility and dynamic resilience on the other.
These special properties of the material lead to a considerably higher resistance and significantly longer service life than with other comparable products. Measurements have shown that with products made of ordinary polyurethane elastomers, abrasion and tensile strength continuously increase with constant use, whereas with Norres products these properties remain constant over a long period of time.
Despite its flexibility, Pre-PUR products do not contain any plasticizers and therefore do not emit any harmful substances. Only this makes it possible that the products can also be used in the pharmaceutical and food industries.
Here is a brief summary of the properties of Pre-PUR products:
- no embrittlement, since without plasticizer
- resistant to organic oils and greases
- resistant to mineral oils
- no risk of encrustation due to smooth inner surface
- long-term microbe- and hydrolysis-resistant
- extremely high resistance to buckling according to ISO 132 under continuous load
- High permanent elasticity
- High tensile and tear strength
- good UV resistance
NORRES customer service
The world market leader in hose technology also offers the best service for its customers in line with its innovative products of the best quality. High technical competence and solution-oriented advice are a matter of course. For appropriately labelled products, shipping is within 24 or 48 hours, otherwise the manufacturer bears the shipping costs. Also in the case of appropriately marked products, the tubular goods are completed with connecting parts within 48 hours. Another special service is the cutting of the tubular product according to customer requirements.
Online, the company offers its customers additional services such as the hose finder for easy product selection, the converter for converting various measurement systems and the customer portal for extended inventory information in real time.
You will find all Norres products with a variety of filter criteria for every application on Felderer24.de